Holstein Idle Air Control (IAC) Valves are direct OE replacements for these critical engine components, offering perfect fit, form and function for flawless operation that restores your vehicle to factory levels of performance. Precision engineered valve exactly duplicates the function of the OE component - ensuring smooth, powerful engine performance and maximum fuel economy. Manufactured with premium materials that ensure rugged, long-term performance and the heat resistance necessary to withstand high engine operating temperatures. Gaskets and fasteners included (where applicable) to ensure proper fit and a tight, leakproof seal. Backed by Holstein's 3 year/36k mile warranty - we believe in our parts and our warranty shows it!